Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Atomtronics: Coherent Control of Atomic Flow via Adiabatic Passage

Albert Benseny, Joan Bagudà, Xavier Oriols, G. Birkl, J. Mompart

Published May 24, 2019• 2 citations
Publisher

Abstract

This chapter discusses an efficient and robust technique to coherently transport a single neutral atom, a single hole, or even a Bose–Albert Einstein condensate between the two extreme traps of a triple-well optical potential. It describes the main features of the optical microtrap array system used to isolate and manipulate individual neutral atoms. The chapter also discusses the main ideas behind the coherent control of matter wave tunneling based on adiabatic passage. It explains both a coherent single-hole diode and a coherent single-hole transistor in a triple-well potential. The chapter presents a single-hole diode by using the collisional interaction between two bosons as a control parameter to allow the whole transport from left to right, and inhibit the transport from right to left. Atomtronics is one of the foremost bottom-top approaches to quantum information science, where neutral atoms in optical, magnetic, and electric potentials form the building blocks of coherent diode and transistor-like devices.

DOI
10.1201/9780429294747-4

Related papers

Nanoelectronics

A. Alarcón, Guillermo Albareda, Fabio L. Traversa +1 more

Albert Benseny,a Joan Baguda`,a Xavier Oriols,b Gerhard Birkl,c Atomtronics is one of the foremost bottom-top approaches to quan- tum information science, where neutral atoms in optical, magnetic, and electric potentials form the building blocks of coherent diode and transistor-like devices. In this context, we discuss in this chapter an efficient and robust technique to coherently transport a single neutral atom, a single hole, or even a Bose-Einstein condensate (BEC) between the two extreme traps of a triple-well optical potential. Solving the corresponding quantum dynamics in terms of Bohmian trajectories, we investigate this adiabatic transport process and present a very counterintuitive effect: by slowing down the total time duration of the transport process, it is possible to achieve sudden particle accelerations yielding ultrahigh atomic velocities.a 3.1 Introduction 191 3.1.1 Atomtronics 191 3.1.2 Three-level atom optics 192 3.1.3 Adiabatic transport with trajectories 195 3.2 Physical System: Neutral Atoms in Optical Microtraps 198 3.2.1 One-dimensional Hamiltonian 200 3.3 Adiabatic Transport of a Single Atom 201 3.3.1 The matter wave STIRAP paradox with Bohmian trajectories 201 3.3.2 Velocities and accelerations of Bohmian trajectories 202 3.4 Adiabatic Transport of a Single Hole 206 3.4.1 Hole transfer as an array-cleaning technique 206 3.4.2 Adiabatic transport of a hole in an array of three traps 208 3.4.2.1 Three-level approximation description 208 3.4.2.2 Numerical simulations 210 3.4.3 Hole transport fidelity 212 3.4.4 Bohmian trajectories for the hole transport 213 3.4.5 Atomtronics with holes 215 3.4.5.1 Single hole diode 215 3.4.5.2 Single-hole transistor 217 3.5 Adiabatic Transport of a Bose-Einstein Condensate 219 3.5.1 Madelung hydrodynamic formulation 222 3.5.2 Numerical simulations 223 3.6 Conclusions 227 Electronics is the branch of science and technology that deals with the controlled flow of electrons. Most of today’s electronic devices use semiconductor diodes and transistors to manipulate electronic current. Notably, the miniaturization of these devices is getting closer and closer to the single atom scale, reaching the limit of Moore’s law [1].a Nowadays, the electronics top-bottom approach is crossing the frontier between the classical and the quantum realm, where quantum effects such as quantum tunneling and quantum correlations, that is, entanglement, are unavoidable. In particular, the transition from the classical to the quantum world constitutes one of the physical scenarios where the Bohmian formulation can give more insight into the underlying physics. See chapter 1 for a detailed discussion of these aspects and chapter 6 for a particular application of Bohmian trajectories to quantum electronic devices.

Pan Stanford Publishing eBooks•Jun 4, 2012•2 citations

Atomtronics with holes: Coherent transport of an empty site in a triple-well potential

Albert Benseny, Sònia Fernández-Vidal, Joan Bagudà +5 more

We investigate arrays of three traps with two fermionic or bosonic atoms. The tunneling interaction between neighboring sites is used to prepare multisite dark states for the empty site (i.e., the hole) which allows for the coherent manipulation of its external degrees of freedom. By means of an ab initio integration of the Schr\"odinger equation, we investigate the adiabatic transport of a hole between the two extreme traps of a triple-well potential. Furthermore, a quantum-trajectory approach based on the de Broglie--Bohm formulation of quantum mechanics is used to get physical insight into the transport process. Finally, we discuss the use of the hole for the construction of a coherent single hole diode and a coherent single hole transistor.

arXiv:0912.4362•Physical Review A•Jul 8, 2010•51 citations

Three-level atom optics via the tunneling interaction

K. Eckert, Maciej Lewenstein, R. Corbalán +3 more

Three-level atom optics is introduced as a simple, efficient, and robust method to coherently manipulate and transport neutral atoms. The tunneling interaction among three trapped states allows us to realize the spatial analog of the stimulated Raman adiabatic passage, coherent population trapping, and electromagnetically induced transparency techniques and offers a wide range of possible applications. We investigate an implementation in optical microtrap arrays and show that under realistic parameters the coherent manipulation and transfer of neutral atoms among dipole traps could be realized in the millisecond range.

arXiv:quant-ph/0308041•Physical Review A•Aug 19, 2004•125 citations

Coherent Manipulation of Holes in Dipole Trap Arrays

Albert Benseny, Sònia Fernández-Vidal, Joan Bagudà +5 more

We investigate single-occupancy dipole trap arrays loaded with a gas of either fermions or bosons presenting some isolated defects consisting in empty sites, i.e., holes. The tunneling interaction between neighboring sites is used to prepare multi-site dark states for the holes allowing for the coherent manipulation of their external degrees of freedom. By means of an ab initio integration of the Schr\odinger equation, we investigate the adiabatic transport of holes between the two extreme traps of a triple-well potential as well as the preparation of a defect-free trap domain. Furthermore, a quantum-trajectory approach based on the de Broglie--Bohm formulation of quantum mechanics is used to get detailed physical insight into the transport process. We extend the previous results to a single hole in a dipole trap array of arbitrary length by means of the Hubbard model, where hole creation and annihilation operators are introduced. Finally, we discuss the use of the hole for the construction of a coherent single hole diode and a coherent single hole transistor.

•Dec 22, 2009•0 citations

Atomtronics: Research in Ultracold Atom Semiconductor Device Analogs

Dana Z. Anderson

Abstract : Theoretical work established a quantum framework in which to address atom analogs of electronic devices and circuits. Initial focus was on isolated elements, particularly atom diodes and atom transistors. Two theoretical approaches addressed different device strategies, one based on double and triple potential wells, the other based on periodic structures that are analogous to semiconductor materials. The first approach is suited to implementations using ultracold atom chip technology, whereas the second is amenable to optical lattice experiments. Both approaches established the presence of atom flux gain in a simple transistor configuration. Further theoretical work developed an open quantum systems approach to simple yet complete circuits. This work provides the analytical tools for treating more complex atomtronic circuits. Corresponding experimental work focused on building an atom chip based Bose-Einstein Condensation (BEC) system for carrying out atom transistor experiments. Chip development demonstrated technology for fabricating structures having nanowires suspended across a substrate groove to avoid the deleterious impact of Van der Waals forces. This work established the foundation of atomtronics and the possibility of experimentally demonstrating such circuits in the near future.

•Aug 1, 2010•0 citations

Open quantum systems approach to atomtronics

Ronald Pepino, J. Cooper, D. Meiser +2 more

We derive a quantum master equation to treat quantum systems interacting with multiple reservoirs. The formalism is used to investigate the atomic transport of bosons across a variety of lattice configurations. We demonstrate how the behavior of an electronic diode, a field-effect transistor, and a bipolar junction transistor can be realized with neutral, ultracold atoms trapped in optical lattices. An analysis of the current fluctuations is provided for the case of the atomtronic diode. Finally, we show that it is possible to demonstrate and logic gate behavior in an optical lattice.

arXiv:1005.3069•Physical Review A•Jul 28, 2010•52 citations
This chapter discusses an efficient and robust technique to coherently transport a single neutral atom, a single hole, or even a Bose–Albert Einstein condensate between the two extreme traps of a triple-well optical potential. It describes the main features of the optical microtrap array system used to isolate and manipulate individual neutral atoms. The chapter also discusses the main ideas behind the coherent control of matter wave tunneling based on adiabatic passage. It explains both a coherent single-hole diode and a coherent single-hole transistor in a triple-well potential. The chapter presents a single-hole diode by using the collisional interaction between two bosons as a control parameter to allow the whole transport from left to right, and inhibit the transport from right to left. Atomtronics is one of the foremost bottom-top approaches to quantum information science, where neutral atoms in optical, magnetic, and electric potentials form the building blocks of coherent diode and transistor-like devices.
Albert Benseny,a Joan Baguda`,a Xavier Oriols,b Gerhard Birkl,c Atomtronics is one of the foremost bottom-top approaches to quan- tum information science, where neutral atoms in optical, magnetic, and electric potentials form the building blocks of coherent diode and transistor-like devices. In this context, we discuss in this chapter an efficient and robust technique to coherently transport a single neutral atom, a single hole, or even a Bose-Einstein condensate (BEC) between the two extreme traps of a triple-well optical potential. Solving the corresponding quantum dynamics in terms of Bohmian trajectories, we investigate this adiabatic transport process and present a very counterintuitive effect: by slowing down the total time duration of the transport process, it is possible to achieve sudden particle accelerations yielding ultrahigh atomic velocities.a 3.1 Introduction 191 3.1.1 Atomtronics 191 3.1.2 Three-level atom optics 192 3.1.3 Adiabatic transport with trajectories 195 3.2 Physical System: Neutral Atoms in Optical Microtraps 198 3.2.1 One-dimensional Hamiltonian 200 3.3 Adiabatic Transport of a Single Atom 201 3.3.1 The matter wave STIRAP paradox with Bohmian trajectories 201 3.3.2 Velocities and accelerations of Bohmian trajectories 202 3.4 Adiabatic Transport of a Single Hole 206 3.4.1 Hole transfer as an array-cleaning technique 206 3.4.2 Adiabatic transport of a hole in an array of three traps 208 3.4.2.1 Three-level approximation description 208 3.4.2.2 Numerical simulations 210 3.4.3 Hole transport fidelity 212 3.4.4 Bohmian trajectories for the hole transport 213 3.4.5 Atomtronics with holes 215 3.4.5.1 Single hole diode 215 3.4.5.2 Single-hole transistor 217 3.5 Adiabatic Transport of a Bose-Einstein Condensate 219 3.5.1 Madelung hydrodynamic formulation 222 3.5.2 Numerical simulations 223 3.6 Conclusions 227 Electronics is the branch of science and technology that deals with the controlled flow of electrons. Most of today’s electronic devices use semiconductor diodes and transistors to manipulate electronic current. Notably, the miniaturization of these devices is getting closer and closer to the single atom scale, reaching the limit of Moore’s law [1].a Nowadays, the electronics top-bottom approach is crossing the frontier between the classical and the quantum realm, where quantum effects such as quantum tunneling and quantum correlations, that is, entanglement, are unavoidable. In particular, the transition from the classical to the quantum world constitutes one of the physical scenarios where the Bohmian formulation can give more insight into the underlying physics. See chapter 1 for a detailed discussion of these aspects and chapter 6 for a particular application of Bohmian trajectories to quantum electronic devices.
We investigate arrays of three traps with two fermionic or bosonic atoms. The tunneling interaction between neighboring sites is used to prepare multisite dark states for the empty site (i.e., the hole) which allows for the coherent manipulation of its external degrees of freedom. By means of an ab initio integration of the Schr\"odinger equation, we investigate the adiabatic transport of a hole between the two extreme traps of a triple-well potential. Furthermore, a quantum-trajectory approach based on the de Broglie--Bohm formulation of quantum mechanics is used to get physical insight into the transport process. Finally, we discuss the use of the hole for the construction of a coherent single hole diode and a coherent single hole transistor.
Three-level atom optics is introduced as a simple, efficient, and robust method to coherently manipulate and transport neutral atoms. The tunneling interaction among three trapped states allows us to realize the spatial analog of the stimulated Raman adiabatic passage, coherent population trapping, and electromagnetically induced transparency techniques and offers a wide range of possible applications. We investigate an implementation in optical microtrap arrays and show that under realistic parameters the coherent manipulation and transfer of neutral atoms among dipole traps could be realized in the millisecond range.
We investigate single-occupancy dipole trap arrays loaded with a gas of either fermions or bosons presenting some isolated defects consisting in empty sites, i.e., holes. The tunneling interaction between neighboring sites is used to prepare multi-site dark states for the holes allowing for the coherent manipulation of their external degrees of freedom. By means of an ab initio integration of the Schr\odinger equation, we investigate the adiabatic transport of holes between the two extreme traps of a triple-well potential as well as the preparation of a defect-free trap domain. Furthermore, a quantum-trajectory approach based on the de Broglie--Bohm formulation of quantum mechanics is used to get detailed physical insight into the transport process. We extend the previous results to a single hole in a dipole trap array of arbitrary length by means of the Hubbard model, where hole creation and annihilation operators are introduced. Finally, we discuss the use of the hole for the construction of a coherent single hole diode and a coherent single hole transistor.
Abstract : Theoretical work established a quantum framework in which to address atom analogs of electronic devices and circuits. Initial focus was on isolated elements, particularly atom diodes and atom transistors. Two theoretical approaches addressed different device strategies, one based on double and triple potential wells, the other based on periodic structures that are analogous to semiconductor materials. The first approach is suited to implementations using ultracold atom chip technology, whereas the second is amenable to optical lattice experiments. Both approaches established the presence of atom flux gain in a simple transistor configuration. Further theoretical work developed an open quantum systems approach to simple yet complete circuits. This work provides the analytical tools for treating more complex atomtronic circuits. Corresponding experimental work focused on building an atom chip based Bose-Einstein Condensation (BEC) system for carrying out atom transistor experiments. Chip development demonstrated technology for fabricating structures having nanowires suspended across a substrate groove to avoid the deleterious impact of Van der Waals forces. This work established the foundation of atomtronics and the possibility of experimentally demonstrating such circuits in the near future.
We derive a quantum master equation to treat quantum systems interacting with multiple reservoirs. The formalism is used to investigate the atomic transport of bosons across a variety of lattice configurations. We demonstrate how the behavior of an electronic diode, a field-effect transistor, and a bipolar junction transistor can be realized with neutral, ultracold atoms trapped in optical lattices. An analysis of the current fluctuations is provided for the case of the atomtronic diode. Finally, we show that it is possible to demonstrate and logic gate behavior in an optical lattice.